Aysak DistrictAysak District is in Sarayan County, South Khorasan province, Iran. Its capital is the city of Aysak.DemographicsPopulationAt the time of the 2006 National Census, the district's population was 23,302 in 6,476 households. The following census in 2011 counted 24,034 people in 7,165 households. The 2016 census measured the population of the district as 24,881 inhabitants in 7,849 households.